Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the sensor that checks the voltage of a part of the motor that helps pump transmission fluid in a hybrid or electric car.
The vehicle's computer has detected an issue with the voltage reading from the sensor monitoring the electric or auxiliary transmission fluid pump motor's Phase V.
The P1A6C code indicates a malfunction in the voltage sensor for the Phase V of the electric or auxiliary transmission fluid pump motor. This sensor is crucial for monitoring the voltage levels and ensuring the motor operates correctly, especially in hybrid or electric vehicles where precise control of the transmission fluid pump is essential.
• Check Engine Light is on
• Reduced fuel efficiency
• Transmission performance issues
• Faulty voltage sensor
• Damaged wiring or connectors
• Malfunctioning transmission fluid pump motor
Voltage Sensor: A device that measures the electrical voltage in a circuit.
Transmission Fluid Pump: A pump that circulates transmission fluid to lubricate and cool the transmission.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the voltage sensor for proper operation.
• Replace the faulty voltage sensor.
• Repair or replace damaged wiring or connectors.
• Replace the transmission fluid pump motor if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Chevrolet Volt
• Toyota Prius
• Nissan Leaf
• Regular maintenance checks
• Ensure proper electrical connections
• Monitor vehicle performance regularly
Sensor Issue
• Avoid driving the vehicle until the issue is fixed to prevent further damage.
• Consult a professional mechanic for accurate diagnosis and repair.
Check with the vehicle manufacturer for powertrain or emissions warranty coverage.
This code has been more prevalent with the increasing use of hybrid and electric vehicles, where electric auxiliary pumps are common.
Moderate – It should be addressed soon to avoid potential transmission damage.
Driving with this code may result in reduced vehicle performance and efficiency. It is advisable to fix the issue promptly.
• Vehicle in park or neutral
• Engine running
The sensor is typically located near the transmission fluid pump motor, often under the vehicle or in the engine compartment.
Q: Can I drive with a P1A6C code?
A: It's not recommended to drive for extended periods with this code, as it may lead to transmission issues.
Q: How do I reset the P1A6C code?
A: After repairs, you can reset the code with an OBD-II scanner, but ensure the issue is fixed first.
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